Children in colorful sleepwear and holiday decorations adorned the Milton J. Rubenstein Museum of Science and Technology in its 8th annual celebration of the Polar Express Pajama Party at the MOST. The event has sold out for the third consecutive year and only has a few tickets left for the screening on December 13.

The education department at the MOST turned one of its main treasures, The Bristol IMAX Omnitheater, into one of the community's most anticipated holiday traditions in the area. This year's movie is "The Polar Express," based on an award-winning children's novel.

"The screen really surrounds you, it's amazing," said Maria Welych, director of marketing and public relations at the MOST. "We have the only IMAX dome in upstate New York. The only other one in the state is in Long Island."

The screening, however, is only a fraction of the activities involved in the night. Children will be able to drink hot chocolate, make liquid nitrogen ice cream, salt crystal snowflakes, jingle bell bracelets and even get temporary tattoos with a holiday themes. The main guest of the night, Santa Claus, had a truly important job.

"The children write to Santa so that they can just give Santa their letter," said Welych. "It's nice to be able to say, 'look Santa here's my letter,' and they can watch him open it up right in front of them."